Kobayashi suffers from low back pain because of the heavy workload and bad sitting posture and tries to relieve it by buying a lot of massage devices and having a massage by Ilulu and Kanna. Tohru also tries to help by feeding her tail and medicines from her world but gives up after asking Takiya and Elma. Finally, she finds out that her tail is the best massage chair for Kobayashi. After finding out about the similarities between the spell and coding languages, Kobayashi is suggested by Shouta's father to learn about Tohru's story. She then meets the Emperor of ...